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# DOMImplementationSource

`public interface DOMImplementationSource`
``

org.w3c.dom.DOMImplementationSource

This interface permits a DOM implementer to supply one or more implementations, based upon requested features and versions, as specified in . Each implemented `DOMImplementationSource` object is listed in the binding-specific list of available sources so that its `DOMImplementation` objects are made available.

See also the Document Object Model (DOM) Level 3 Core Specification.

## Summary

### Public methods
`abstract DOMImplementation` | `getDOMImplementation(String features)` A method to request the first DOM implementation that supports the specified features.
`abstract DOMImplementationList` | `getDOMImplementationList(String features)` A method to request a list of DOM implementations that support the specified features and versions, as specified in .

## Public methods

### getDOMImplementation

    public abstract DOMImplementation getDOMImplementation (String features)

A method to request the first DOM implementation that supports the specified features.

Parameters
`features` | `String`: A string that specifies which features and versions are required. This is a space separated list in which each feature is specified by its name optionally followed by a space and a version number. This method returns the first item of the list returned by `getDOMImplementationList`. As an example, the string `"XML 3.0 Traversal +Events 2.0"` will request a DOM implementation that supports the module "XML" for its 3.0 version, a module that support of the "Traversal" module for any version, and the module "Events" for its 2.0 version. The module "Events" must be accessible using the method `Node.getFeature()` and `DOMImplementation.getFeature()`.

Returns
`DOMImplementation` | The first DOM implementation that support the desired features, or `null` if this source has none.

### getDOMImplementationList

    public abstract DOMImplementationList getDOMImplementationList (String features)

A method to request a list of DOM implementations that support the specified features and versions, as specified in .

Parameters
`features` | `String`: A string that specifies which features and versions are required. This is a space separated list in which each feature is specified by its name optionally followed by a space and a version number. This is something like: "XML 3.0 Traversal +Events 2.0"

Returns
`DOMImplementationList` | A list of DOM implementations that support the desired features.

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